class SkipOnEmptyTest

class SkipOnEmptyTest extends MigrateProcessTestCase {
    
    /**
     * @covers ::process
     */
    public function testProcessSkipsOnEmpty() : void {
        $configuration['method'] = 'process';
        $plugin = new SkipOnEmpty($configuration, 'skip_on_empty', []);
        $this->assertFalse($plugin->isPipelineStopped());
        $plugin->transform('', $this->migrateExecutable, $this->row, 'destination_property');
        $this->assertTrue($plugin->isPipelineStopped());
    }
    
    /**
     * @covers ::process
     */
    public function testProcessBypassesOnNonEmpty() : void {
        $configuration['method'] = 'process';
        $plugin = new SkipOnEmpty($configuration, 'skip_on_empty', []);
        $value = $plugin->transform(' ', $this->migrateExecutable, $this->row, 'destination_property');
        $this->assertSame(' ', $value);
        $this->assertFalse($plugin->isPipelineStopped());
    }
    
    /**
     * @covers ::row
     */
    public function testRowSkipsOnEmpty() : void {
        $configuration['method'] = 'row';
        $this->expectException(MigrateSkipRowException::class);
        (new SkipOnEmpty($configuration, 'skip_on_empty', []))->transform('', $this->migrateExecutable, $this->row, 'destination_property');
    }
    
    /**
     * @covers ::row
     */
    public function testRowBypassesOnNonEmpty() : void {
        $configuration['method'] = 'row';
        $value = (new SkipOnEmpty($configuration, 'skip_on_empty', []))->transform(' ', $this->migrateExecutable, $this->row, 'destination_property');
        $this->assertSame(' ', $value);
    }
    
    /**
     * Tests that a skip row exception without a message is raised.
     *
     * @covers ::row
     */
    public function testRowSkipWithoutMessage() : void {
        $configuration = [
            'method' => 'row',
        ];
        $process = new SkipOnEmpty($configuration, 'skip_on_empty', []);
        $this->expectException(MigrateSkipRowException::class);
        $process->transform('', $this->migrateExecutable, $this->row, 'destination_property');
    }
    
    /**
     * Tests that a skip row exception with a message is raised.
     *
     * @covers ::row
     */
    public function testRowSkipWithMessage() : void {
        $configuration = [
            'method' => 'row',
            'message' => 'The value is empty',
        ];
        $process = new SkipOnEmpty($configuration, 'skip_on_empty', []);
        $this->expectException(MigrateSkipRowException::class);
        $this->expectExceptionMessage('The value is empty');
        $process->transform('', $this->migrateExecutable, $this->row, 'destination_property');
    }
    
    /**
     * Tests repeated execution of a process plugin can reset the pipeline stoppage correctly.
     */
    public function testMultipleTransforms() : void {
        $configuration['method'] = 'process';
        $plugin = new SkipOnEmpty($configuration, 'skip_on_empty', []);
        // Confirm transform will stop the pipeline.
        $value = $plugin->transform('', $this->migrateExecutable, $this->row, 'destination_property');
        $this->assertNull($value);
        $this->assertTrue($plugin->isPipelineStopped());
        // Restart the pipeline and test again.
        $plugin->reset();
        $this->assertFalse($plugin->isPipelineStopped());
        $value = $plugin->transform(' ', $this->migrateExecutable, $this->row, 'destination_property');
        $this->assertSame(' ', $value);
        $this->assertFalse($plugin->isPipelineStopped());
    }

}